HVAC (heating & air conditioning) in Seymour, CT

There are 278 HVAC companies within 25 miles of Seymour, CT in the AssistAnt directory as of October 16, 2026, 4 of them based in Seymour itself. None are verified by AssistAnt yet, so check a business’s license and insurance before you hire it. Verified businesses are listed first, then by distance. No business can pay for a higher spot.

HVAC (heating & air conditioning) near Seymour

• Walsh Family Contracting Llc Seymour, CT · 0.3 mi Not verified yet (203) 231-3652
• Carefree Heating & Cooling LLC Seymour, CT · 1.1 mi Not verified yet (203) 743-6788
• Elite Heating And Cooling Llc Seymour, CT · 1.2 mi Not verified yet (203) 516-5595
• Leclaire Heating & Air Conditioning Llc Seymour, CT · 1.4 mi Not verified yet (203) 735-1700
• Mobilio & Son HVAC Beacon Falls, CT · 2.5 mi Not verified yet (203) 404-0407
• All Pro HVAC Beacon Falls, CT · 3.0 mi Not verified yet (475) 212-3109
• Buddy's Fuel Oil Oxford, CT · 3.1 mi Not verified yet (203) 888-2319
• Superior Comfort Heating and Air Ansonia, CT · 3.3 mi Not verified yet (203) 736-6309
• Ralph Mann & Sons Inc Ansonia, CT · 3.6 mi Not verified yet (800) 995-6266
• Adamowski Heating and Cooling Ansonia, CT · 3.6 mi Not verified yet (203) 494-7461
• Aire Serv of Shelton Ansonia, CT · 3.7 mi Not verified yet (203) 717-9527
• Hillcrest Fuel Ansonia, CT · 3.7 mi Not verified yet (203) 735-1847
• A & S Nathan Heating & Cooling Llc Ansonia, CT · 3.8 mi Not verified yet (203) 735-5332
• Gold Coast Refrigeration Service Derby, CT · 4.2 mi Not verified yet (203) 888-5532
• Blizzard Mechanical Llc Derby, CT · 4.4 mi Not verified yet (203) 735-2549
• Giordano's Heating & A/C Derby, CT · 4.8 mi Not verified yet (203) 734-7648
• Ward Heating and Cooling Oxford, CT · 4.8 mi Not verified yet (203) 994-6052
• Brainard's Heating Oil and Propane Shelton, CT · 5.0 mi Not verified yet (203) 343-1011
• 1-800-PLUMBER +AIR of Fairfield County Shelton, CT · 5.6 mi Not verified yet (203) 921-1560
• Ace Service Co. New Haven, CT · 5.6 mi Not verified yet (203) 387-6800
• One Hour Heating & Air Conditioning® Of Shelton Derby, CT · 5.6 mi Not verified yet (203) 442-9307
• E Elving Heating And Cooling Llc Naugatuck, CT · 6.0 mi Not verified yet (203) 833-0325
• Frank Fazzino Plumbing & Heating Naugatuck, CT · 6.0 mi Not verified yet (203) 729-1230
• J & A Waterville Oil Service Naugatuck, CT · 6.0 mi Not verified yet (203) 729-5216
• One Hour Heating & Air Conditioning Shelton, CT · 6.4 mi Not verified yet (203) 445-6856
• Dal Fuel Oil Company Naugatuck, CT · 7.0 mi Not verified yet (203) 758-8082
• Pro Tech Heating Orange, CT · 7.1 mi Not verified yet (203) 799-9228
• Air Dynamics Monroe, CT · 7.2 mi Not verified yet (203) 579-4444
• AE Olsen Heating and AC Services Southbury, CT · 7.3 mi Not verified yet (203) 264-6571
• Preferred Plumbing Company New Haven, CT · 7.5 mi Not verified yet (203) 763-4973

Showing the 30 listed first. Search by ZIP code to see more.

Questions

How many HVAC companies are near Seymour, CT?

278 within 25 miles, 4 in Seymour, as of October 16, 2026.

Which HVAC companies near Seymour, CT are verified?

None yet. Verified means AssistAnt checked the business registration and insurance; unverified listings come from public business records.

Can a business pay to rank higher on AssistAnt?

No. Verified businesses are listed first, then everyone else by distance. Placement cannot be bought, and AssistAnt never sells your contact information.

More in Seymour

• Appliance repair in Seymour, CT59 businesses
• Dryer vent cleaning in Seymour, CT16 businesses
• Used appliances in Seymour, CT11 businesses
• Plumbers in Seymour, CT206 businesses
• Electricians in Seymour, CT292 businesses
• Roofers in Seymour, CT273 businesses
• Landscaping & lawn care in Seymour, CT591 businesses
• Cleaning services in Seymour, CT319 businesses
• Pest control in Seymour, CT76 businesses
• Painters in Seymour, CT164 businesses
• Handyman services in Seymour, CT103 businesses
• Pool & spa service in Seymour, CT49 businesses
• Concrete, masonry & paving in Seymour, CT236 businesses
• Fence contractors in Seymour, CT51 businesses
• Flooring in Seymour, CT43 businesses
• Windows & doors in Seymour, CT87 businesses
• Remodeling contractors in Seymour, CT175 businesses
• Insulation contractors in Seymour, CT12 businesses
• Well drilling in Seymour, CT18 businesses
• Towing in Seymour, CT83 businesses
• Auto repair in Seymour, CT865 businesses
• Collision repair & auto glass in Seymour, CT235 businesses
• Diesel & truck repair in Seymour, CT35 businesses
• Welding & fabrication in Seymour, CT214 businesses
• Machine shops & CNC in Seymour, CT233 businesses
• Computer & phone repair / IT in Seymour, CT227 businesses
• Excavation & heavy equipment in Seymour, CT59 businesses

Nearby towns

• Beacon Falls, CT 3 mi
• Ansonia, CT 4 mi
• Derby, CT 5 mi
• Orange, CT 6 mi
• Oxford, CT 6 mi
• Shelton, CT 7 mi
• Naugatuck, CT 7 mi
• Hamden, CT 8 mi
• Middlebury, CT 9 mi
• West Haven, CT 10 mi

Own a business in Seymour?

Your listing is free. Claim it to correct your details, or get verified: send your business registration and insurance and you’re listed ahead of unverified businesses. Claim your listing →

Free check: does ChatGPT recommend your business? → · How to get AI assistants to recommend you (free guide) →

Want the rest of your office handled too? AssistAnt software: a 24/7 AI receptionist, scheduling, invoicing and tech pay, one flat price per shop.